What is the mechanism of muscle contraction?

What is the mechanism of muscle contraction?
  1. Sliding filament theory
  2. Contraction by release of neurotransmitter
  3. Binding of calcium ions to troponin
  4. Shortening of the sarcomere

Solution

The mechanism of muscle contraction is best explained by the sliding filament theory, which states that contraction of a muscle fiber takes place by the sliding of the thin filaments over the thick filaments.

Asked in: NCERT

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